propane warning for LL (by RR [WA]) Aug 31, 2011 10:54 AM|
propane warning for LL (by Reid [KS]) Aug 31, 2011 11:41 AM
propane warning for LL (by Reid [KS]) Aug 31, 2011 5:36 PM
propane warning for LL (by Virden [OH]) Aug 31, 2011 8:01 PM
propane warning for LL (by ll [AZ]) Aug 31, 2011 9:23 PM
propane warning for LL (by ll [AZ]) Aug 31, 2011 9:27 PM
propane warning for LL (by Virden [OH]) Sep 1, 2011 7:44 AM
propane warning for LL (by gevans [SC]) Sep 1, 2011 8:54 AM
propane warning for LL (by RR [WA]) Posted on: Aug 31, 2011 10:54 AM
This story about Earl Thelander is a few years old, but I just read it and realized that it could happen to ANY ONE OF US.
Here's the story:
In short, copper thieves stole propane lines, house filled with propane, gas was turned off, authorities were called, the house was aired out for a couple hours, THEN:
"Earl entered the house, and, smelling no propane gas, felt it was safe for him to work. In the basement, however, he discovered water had leaked onto the floor from the cut and stolen water lines. He set up a squirrel cage blower to help expedite drying the basement floor and plugged it in. The home suddenly exploded, throwing him all the way across the room and into a basement corner."
I probably would have done the same thing...
How could this have been prevented? How long do you need to air out a house after a major propane leak?
propane warning for LL (by Reid [KS]) Posted on: Aug 31, 2011 11:41 AM
Propane is heavier than air and settles to the lowest point . To air out and enclosed space like that the squirrel cage should have been above ground blowing ducted air into the basement with windows and doors open . then probably checked with a sniffer after a period of time --99.38.xxx.xxx
propane warning for LL (by Reid [KS]) Posted on: Aug 31, 2011 5:36 PM
The Lower explosive limit of Propane is 2.1% and the upper explosive limit of Propane in Air is 10.1%. Concentrations below and above those numbers will not explode. Of course it's always best to err on the side of safety. Just assume it's ready to blow !! --99.38.xxx.xxx
propane warning for LL (by Virden [OH]) Posted on: Aug 31, 2011 8:01 PM
Read the safe boating us web site about bilge pumps it explains what happened, Reid has the numbers good for explosion, but when there is more density the flame front travels towards the oxygen source - when they meet it explodes, could be 6 feet from the propane or 10 inches, ventilate then wait, sniff test before any electrical item turns on. --76.241.xxx.x
propane warning for LL (by ll [AZ]) Posted on: Aug 31, 2011 9:23 PM
I lived at Catalina Island for a summer. Down at the fuel dock some tourist filled his tank. Except for some reason it took a lot more fuel than normal. (They reported afterward... ) Instead of finding out why, they just hopped in and started her up. BOOM!!! Luckily they hadn't bothered checking the bilge so they were all on deck, so instead of dying they were simply blown off the boat and survived the fireball. --76.170.xxx.xxx
propane warning for LL (by ll [AZ]) Posted on: Aug 31, 2011 9:27 PM
Oh, I forgot the punch line. The hose had come off the fuel tank, so they pumped like 50 gallons of gas into the bottom of the boat. The explosion blew out windows 200 feet away.
Remind me to tell you about the scuba tank that fell off a table that same summer, broke the valve off and punched clear through the wall of a mobile home. --76.170.xxx.xxx
propane warning for LL (by Virden [OH]) Posted on: Sep 1, 2011 7:44 AM
Those air tanks make great missiles! we played with them at Mayport, aim backwards and hit the valve as hard as you can - that thing is G---O-----N------E-------------, in the blink of an eye --76.241.xxx.xx
propane warning for LL (by gevans [SC]) Posted on: Sep 1, 2011 8:54 AM
Saw that once on a navy ship, they aimed the cylinder over the side and whacked the valve with a big pipe wrench.
It looked like a torpedo skipping across the waves.
I bet it would have knocked a big dent in the ship, or maybe even punched a hole. --141.129.x.xx